中国空间科学技术

中国空间科学技术

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阶跃型频率引导工作性能的影响分析

陈涛   

  • 发布日期:1986-08-25

ANALYSIS OF THE PERFORMANCE FOR THE “STEP TYPE” FRENQUENCY GUIDANCE

Chen Tao   

  • Online:1986-08-25

摘要： <正>一、引言跟踪锁相接收机频率分析器是空间飞行体精密跟踪系统的重要部件。对于使用高增益、窄波束的天线来截获和跟踪目标,提高对下线信号分析的有效性和缩短频率捕获的时间,便于载波锁褶接收机迅速达到锁定工作状态,有其重要的作用和意义。经验表明,环路捕获某种形式的信号较之跟踪这一信号要困难得多。因此,寻求一种能在短时间内完成从噪声中检出信号并以合理的方式给环路以频率引导电压,与环路组成匹配级联工作,以便顺利完成对目标捕获的引导设备,是研制跟踪接收机的主要课题之一。

Abstract: This paper quots stress on discussing and analysing a guidance method of "step type" which is ideally designed, and the characteristics of the loop—locked control in combining with PLL by a brief introduction of a typical freqneney analyzer. Simply calculation is made to this guidance method for the work threshold and guidance probability. A brief description of the real engineering application for guidance technique is given.